CN207214192U - A kind of range hood - Google Patents
A kind of range hood Download PDFInfo
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- CN207214192U CN207214192U CN201721277350.8U CN201721277350U CN207214192U CN 207214192 U CN207214192 U CN 207214192U CN 201721277350 U CN201721277350 U CN 201721277350U CN 207214192 U CN207214192 U CN 207214192U
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- air inlet
- fume collecting
- exhaust fume
- fan
- collecting hood
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Abstract
It the utility model is related to a kind of range hood, including exhaust fume collecting hood, smoke deflector and fan shroud, the exhaust fume collecting hood has the first air inlet, the smoke deflector is below the first air inlet, the fan shroud is above the first air inlet, and the inner chamber of the fan shroud forms and leads cigarette main channel, in addition to accessory fan and leads cigarette subchannel, the second air inlet close to the first air inlet arrangement is provided with the exhaust fume collecting hood, and second air inlet is corresponding with the edge of the smoke deflector；The accessory fan is above exhaust fume collecting hood and the air inlet of accessory fan is corresponding with the second air inlet, described to lead cigarette subchannel above exhaust fume collecting hood and led with by the flue gas for passing through the second air inlet from bottom to top in cigarette main channel.In use when oil smoke concentration is higher, accessory fan is opened, the flow field above smoke deflector can be improved, add the negative pressure on smoke deflector periphery, effectively improve oil smoke infiltration rate, prevent oil smoke from being escaped from smoke deflector periphery, improve oil smoke assimilation effect.
Description
Technical field
It the utility model is related to a kind of range hood.
Background technology
Patent No. ZL200910096759.3 Chinese invention《A kind of range hood with smoke deflector》(Authorization Notice No.
For CN101514823B), the range hood has body, exhaust fume collecting hood and smoke deflector, and exhaust fume collecting hood is provided with air inlet, smoke deflector
(also known as cowling panel) the face air inlet sets and maintains predetermined spacing with exhaust fume collecting hood, so as in smoke deflector and exhaust fume collecting hood two
Formed with holding the oil smoke passage that passes through of oil smoke between person, the smoke deflector in the patent is fixed setting, the position of its oil smoke passage
Put and size cannot be adjusted, following deficiency be present：
(1) this top-sucking kitchen ventilator integral installation highly determines that the pot of range hood distance generation oil smoke compares
Far, negative pressure loss is bigger；
(2) smoke deflector is located at exhaust fume collecting hood port and designed with exhaust fume collecting hood split, very big after range hood installation smoke deflector
The depth of exhaust fume collecting hood is reduced in degree, often a certain degree of blasting fume phenomenon occurs not in time because oil smoke absorbs.
Utility model content
Technical problem to be solved in the utility model is the present situation for prior art, there is provided one kind can be led by increase
Cigarette plate periphery negative pressure and improve the range hood of oil smoke assimilation effect.
Technical scheme is used by the utility model solves above-mentioned technical problem：A kind of range hood, including exhaust fume collecting hood,
Smoke deflector and fan shroud, the exhaust fume collecting hood have the first air inlet, and the smoke deflector is below the first air inlet, the blower fan
Cover above the first air inlet, and the inner chamber of the fan shroud forms and leads cigarette main channel, it is characterised in that：Also include accessory fan
And cigarette subchannel is led, it is provided with the exhaust fume collecting hood in the position corresponding with the edge of the smoke deflector close to the first air inlet cloth
The second air inlet put；The accessory fan is above exhaust fume collecting hood and the air inlet of accessory fan is relative with the second air inlet
Should, it is described to lead cigarette subchannel above exhaust fume collecting hood and the flue gas for passing through the second air inlet from bottom to top is led into cigarette main channel
In.
In such scheme, the passage for leading cigarette subchannel and including mounting cup and being connected with the mounting cup, the peace
Dress covers on exhaust fume collecting hood and surrounds accessory fan wherein, and the passage is located at the side of mounting cup, is opened on the fan shroud
There is the 4th air inlet being connected with the outlet side of passage.The structure is set, in order to which the flue gas for drawing accessory fan imports
Fan shroud is led in cigarette main channel.
Preferably, after the channel middle is bent to form the front portion being connected with mounting cup and is connected with fan shroud
Portion, the rear portion of the passage and leads arrangement at an acute angle between cigarette main channel.Preferably, the rear portion of the passage is with leading cigarette main channel
Between arranged in 30~55 ° of angles.Using such structure, oil smoke can be sent directly into blower fan system, prevented due to excessive
Oil smoke is gathered in flue collector, causes oil smoke excessive.
As an improvement, the area of second air inlet is more than the air-admitting surface of accessory fan, second air inlet
On be provided with secondary filter screen, be provided with baffle plate above the secondary filter screen, the air inlet phase with accessory fan be provided with the baffle plate
Corresponding opening.Formed with collection cigarette cavity between the secondary filter screen and baffle plate.The structure is set, to increase auxiliary air inlet face
Product, further avoids fumes escaping.
Improve again, the secondary filter screen has a plurality of spaced apart filter bar, and respectively filters bar inner hollow so as to form energy
The accommodating cavity of activated carbon granule is loaded, the end of the accommodating cavity has the port being connected with the collection cigarette cavity.The knot is set
Structure, smoke particle can be removed before oil smoke is imported into fan shroud, to avoid the part oil smoke from polluting blower fan.
Preferably, depression forms mounting groove, the edge shaping of the secondary filter screen upwards at the edge of second air inlet
It is connected for the frame that can be embedded in the mounting groove, the frame inner hollow and with the port of the filter bar, the top of the frame
Arrangement is opened wide so as to be connected with collection cigarette cavity by portion.
In above-mentioned each preferred scheme, main filter screen is provided with first air inlet, and the top of the main filter screen is set
There is the adsorption layer that the main filter screen can be covered.The adsorption layer is preferably replaceable spongy layer, active carbon layer etc..The knot is set
Structure, it can prevent oil smoke from being polluted to blower fan, to keep fume-exhausting to begin to being removed by a large amount of oil smoke of the first air inlet
There is preferable oil smoke suction function eventually.
Preferably, the 3rd air inlet, the collection cigarette are formed between the upper roof of the lower roof and smoke deflector of the exhaust fume collecting hood
The roof of cover tilts gradually downward from edge to the first air inlet, corresponding, and the smoke deflector is gradually upward from edge to centre
Tilt, so that the bore of the 3rd air inlet is gradually reduced according to flue gas circulating direction from upstream to downstream.The structure can
Wind speed is improved, strengthens oil smoke adsorption effect.
Further preferably, described accessory fan is centrifugal blower, the axial line of the centrifugal blower and corresponding smoke deflector it
Between arrangement at an acute angle.Using such structure, pressurization of the centrifugal blower to smoke deflector edge can be improved, further improves oil
Cigarette adsorption capacity.
Compared with prior art, the utility model has the advantage of：The utility model has opened up corresponding lead on exhaust fume collecting hood
Second air inlet of the edge arrangement of cigarette plate, and there is provided can make oil smoke by being directly entered after the second air inlet in exhaust fume collecting hood
Accessory fan and cigarette subchannel is led, in use when oil smoke concentration is higher, open accessory fan, can improve on smoke deflector
The flow field of side, adds the negative pressure on smoke deflector periphery, effectively improves oil smoke infiltration rate, prevent oil smoke from escaping from smoke deflector periphery
Ease, improve oil smoke assimilation effect.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment；
Fig. 2 is the structural representation of another angles of Fig. 1；
Fig. 3 is Fig. 1 sectional view；
Fig. 4 is the structural representation that cigarette subchannel is led in Fig. 1；
Fig. 5 is the mplifying structure schematic diagram of part A in Fig. 3.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing embodiment.
As shown in Fig. 1~5, the range hood of the present embodiment includes exhaust fume collecting hood 1, smoke deflector 2, fan shroud 3, accessory fan 4
And cigarette subchannel 5 is led, exhaust fume collecting hood 1 has the first air inlet 11, and smoke deflector 2 is under the lower section of the first air inlet 2, exhaust fume collecting hood 1
Form the 3rd air inlet 10 between roof and the upper roof of smoke deflector 2, the roof of exhaust fume collecting hood 1 from edge to the first air inlet 11 by
Gradually tilt down, corresponding, smoke deflector 2 is gradually inclined upwardly from edge to centre, so that the bore of the 3rd air inlet 10 is pressed
It is gradually reduced according to flue gas circulating direction from upstream to downstream, to strengthen oil smoke adsorption effect.Fan shroud 3 is located at the first air inlet 1
Top, and the inner chamber of the fan shroud 3 forms and leads cigarette main channel 30.
In the present embodiment, the second air inlet 12 close to the first air inlet 11 arrangement, the present embodiment are provided with exhaust fume collecting hood 1
In the second air inlet 12 for two and be respectively arranged in the both sides of the first air inlet 11, and each second air inlet 12 respectively with phase
Answer the edge of smoke deflector 2 corresponding.Accessory fan 4 is above exhaust fume collecting hood 1, and the air inlet of accessory fan 4 and the second air intake
Mouth 12 is corresponding, leads cigarette subchannel 5 located at the top of exhaust fume collecting hood 1 and is imported with the flue gas that will pass through the second air inlet 12 from bottom to top
Lead in cigarette main channel 30.The accessory fan 4 of the present embodiment is centrifugal blower, the axial line of the centrifugal blower and corresponding smoke deflector 2
Between arrangement at an acute angle, to improve pressurization of the centrifugal blower to the edge of smoke deflector 2, further improve oil smoke adsorption capacity.
Specifically, leading, cigarette subchannel 5 includes mounting cup 51 and the passage 52 being connected with the mounting cup 51, mounting cup 51 are set
Surrounded wherein on exhaust fume collecting hood 1 and by accessory fan 4, passage 52 is provided with the side of mounting cup 51, fan shroud 3 and passage
The 4th air inlet 31 that 52 outlet side is connected, in order to which what the flue gas of drawing accessory fan 4 imported fan shroud 3 leads cigarette master
In passage 30.The middle part of passage 52 bending in the present embodiment make passage 52 formed the front portion 521 that is connected with mounting cup 51 and with
The rear portion 522 that fan shroud 3 is connected, the rear portion 522 of passage 52 and leads arrangement at an acute angle between cigarette main channel 30, preferably in 30~
55 ° of θ angles arrangement.Using such structure, oil smoke can be sent directly into blower fan system, prevented due to excessive oil smoke aggregation
In flue collector, cause oil smoke excessive.
In the present embodiment, the area of the second air inlet 12 is more than the air-admitting surface of accessory fan 4, the second air inlet 12
On be provided with secondary filter screen 6, the top of the secondary filter screen 6 is provided with baffle plate 7, and the air intake with accessory fan 4 is provided with the baffle plate 7
The corresponding opening 71 of mouth.Formed with collection cigarette cavity 60 between secondary filter screen 6 and baffle plate 7.Secondary filter screen 6 has a plurality of interval cloth
The filter bar 61 put, and each filter inner hollow of bar 61 can load the accommodating cavity of activated carbon granule so as to be formed, the end of the accommodating cavity
With the port 611 being connected with collection cigarette cavity 60.Depression forms mounting groove 121 upwards at the edge of second air inlet 12, secondary
The edge shaping of filter screen 6 is the frame 62 that can be embedded in the mounting groove 121, the inner hollow of frame 62 and the port with filtering bar 61
611 are connected, and arrangement is opened wide so as to be connected with collection cigarette cavity 60 in the top of frame 62.The structure is set, can be led by oil smoke
Smoke particle is removed before entering fan shroud 3, to avoid the part oil smoke from polluting blower fan.
Main filter screen 8 is provided with first air inlet 11 of the present embodiment, and the top of the main filter screen 8 is provided with and can lead this
The adsorption layer that filter screen 8 covers.The adsorption layer is preferably replaceable spongy layer, active carbon layer etc..The structure is set, can be to passing through
A large amount of oil smoke of first air inlet 11 are removed, and prevent oil smoke from being polluted to blower fan, with keep fume-exhausting all the time have compared with
Good oil smoke suction function.
The range hood of the present embodiment in use, when oil smoke concentration is higher, is opened accessory fan 4, can improved
The flow field of the top of smoke deflector 2, the negative pressure on increase smoke deflector 2 periphery, effectively improves oil smoke infiltration rate, prevents oil smoke from smoke deflector
Periphery is escaped, and improves oil smoke assimilation effect.
Claims (11)
1. a kind of range hood, including exhaust fume collecting hood (1), smoke deflector (2) and fan shroud (3), the exhaust fume collecting hood (1) has first to enter
Air port (11), for the smoke deflector (2) below the first air inlet (11), the fan shroud (3) is located at the first air inlet (11)
Top, and the inner chamber of the fan shroud (3) forms and leads cigarette main channel (30), it is characterised in that：Also include accessory fan (4) and lead cigarette
Subchannel (5), it is provided with the position corresponding with the edge of the smoke deflector (2) on the exhaust fume collecting hood (1) close to the first air intake
The second air inlet (12) of mouth (11) arrangement；The accessory fan (4) is above the exhaust fume collecting hood (1) and accessory fan (4) are entered
Air port is corresponding with the second air inlet (12), described to lead cigarette subchannel (5) above exhaust fume collecting hood (1) and pass through from bottom to top
The flue gas of second air inlet (12) is led in cigarette main channel (30).
2. range hood according to claim 1, it is characterised in that：The cigarette subchannel (5) of leading includes mounting cup (51)
And the passage (52) being connected with the mounting cup (51), the mounting cup (51) is on the exhaust fume collecting hood (1) and by accessory fan (4)
Surround wherein, the passage (52) is located at the side of mounting cup (51), is provided with the fan shroud (3) and the outlet of passage (52)
Hold the 4th air inlet (31) being connected.
3. range hood according to claim 2, it is characterised in that：Bending makes passage (52) shape in the middle part of the passage (52)
Into the front portion (521) being connected with mounting cup (51) and the rear portion (522) being connected with fan shroud (3), the passage (52)
Rear portion (522) and lead arrangement at an acute angle between cigarette main channel (30).
4. range hood according to claim 3, it is characterised in that：The rear portion (522) of the passage (52) is with leading cigarette master
Arranged between passage (30) in 30~55 ° of angles.
5. range hood according to claim 1, it is characterised in that：The area of second air inlet (12) is more than auxiliary
The air-admitting surface of blower fan (4), secondary filter screen (6) is provided with second air inlet (12), the top of the secondary filter screen (6)
Baffle plate (7) is provided with, the opening (71) corresponding with the air inlet of accessory fan (4) is provided with the baffle plate (7).
6. range hood according to claim 5, it is characterised in that：Formed between the secondary filter screen (6) and baffle plate (7)
There is collection cigarette cavity (60).
7. range hood according to claim 6, it is characterised in that：The secondary filter screen (6) has a plurality of arranged for interval
Filter bar (61), and respectively filter bar (61) inner hollow and can load the accommodating cavity of activated carbon granule so as to be formed, the end of the accommodating cavity
Portion has the port (611) being connected with the collection cigarette cavity (60).
8. range hood according to claim 7, it is characterised in that：The edge of second air inlet (12) is recessed upwards
Mounting groove (121) is formed, the edge shaping of the secondary filter screen (6) is the frame (62) that can be embedded in the mounting groove (121), should
Frame (62) inner hollow is simultaneously connected with the port (611) of the filter bar (61), and arrangement is opened wide at the top of the frame (62)
So as to be connected with collection cigarette cavity (60).
9. range hood according to claim 1, it is characterised in that：Main filter screen is provided with first air inlet (11)
(8), and above the main filter screen (8) it is provided with the adsorption layer that the main filter screen (8) can be covered.
10. range hood according to claim 1, it is characterised in that：The lower roof and smoke deflector of the exhaust fume collecting hood (1)
(2) form the 3rd air inlet (10) between upper roof, the roof of the exhaust fume collecting hood (1) from edge to the first air inlet (11) by
Gradually tilt down, corresponding, the smoke deflector (2) is gradually inclined upwardly from edge to centre, so that the 3rd air inlet
(10) bore is gradually reduced according to flue gas circulating direction from upstream to downstream.
11. range hood according to claim 10, it is characterised in that：Described accessory fan (4) is centrifugal blower, should
Arrangement at an acute angle between the axial line of centrifugal blower and corresponding smoke deflector (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721277350.8U CN207214192U (en) | 2017-09-30 | 2017-09-30 | A kind of range hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721277350.8U CN207214192U (en) | 2017-09-30 | 2017-09-30 | A kind of range hood |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207214192U true CN207214192U (en) | 2018-04-10 |
Family
ID=61820086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721277350.8U Active CN207214192U (en) | 2017-09-30 | 2017-09-30 | A kind of range hood |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207214192U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109253484A (en) * | 2018-11-13 | 2019-01-22 | 林德祥 | Smoke evacuation system |
| CN109595620A (en) * | 2017-09-30 | 2019-04-09 | 宁波方太厨具有限公司 | A kind of range hood |
| CN111735087A (en) * | 2020-05-12 | 2020-10-02 | 宁波方太厨具有限公司 | Fume exhaust fan |
-
2017
- 2017-09-30 CN CN201721277350.8U patent/CN207214192U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109595620A (en) * | 2017-09-30 | 2019-04-09 | 宁波方太厨具有限公司 | A kind of range hood |
| CN109595620B (en) * | 2017-09-30 | 2024-02-20 | 宁波方太厨具有限公司 | Fume exhauster |
| CN109253484A (en) * | 2018-11-13 | 2019-01-22 | 林德祥 | Smoke evacuation system |
| CN111735087A (en) * | 2020-05-12 | 2020-10-02 | 宁波方太厨具有限公司 | Fume exhaust fan |
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